Harry Potter author J.K Rowling is joining forces with Warner Bros. again to make a big-screen adaptation of her Hogwarts textbook Fantastic Beasts and Where to Find Them, EW reports.

The movie will focus on the book’s fictitious author, Newt Scamander.

“Although it will be set in the worldwide community of witches and wizards where I was so happy for 17 years, Fantastic Beasts and Where to Find Them is neither a prequel nor a sequel to the Harry Potter series, but an extension of the wizarding world,” said Rowling, in a statement. “The laws and customs of the hidden magical society will be familiar to anyone who has read the Harry Potter books or seen the films, but Newt’s story will start in New York, 70 years before Harry’s gets underway.”

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